Now a Days, LCD or Liquid Crystal Display are very common for Displaying Alphanumeric characters.The Working of 16 x 1 LCD is Little Bit Different then of LCD 16 x 2.

In Most of Cases 16 x 1 LCD is available without Auxiliary Controller. Means as you see only HD44780 Controller at Back Side. In this section we discuss LCD 16 x 1 with no Auxiliary Controller.

Figure 1: 16 x 2 LCD

Figure 2: 16 x 1 LCD

The above Images will clearly mention the difference between two. The 16 x 2 LCD having with Auxiliary Controller shows two epoxy blobs but the 16 x 1 LCD Shows only one epoxy blobs.Due to low cost Single Row LCD do not have Auxiliary Controller

LCD Addressing

Here is Addressing Scheme for 16 x 2 LCD.

Now Just Look at addressing scheme of LCD.

It is Interesting to know that LCD 16 x 1 is Technically LCD 8 x 2. But the Arrange or configuration will be different as below:

In Below program we have assumed following pin assignment with 8051 Microcontroller.

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